Materials Literature
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Plasma fluorination followed by cross-linking of polybutadiene films gives rise to the formation of hard super-hydrophobic surfaces. The combined effect of low surface energy and substrate roughness is found to underpin the observed liquid repellency behavior.
Abstract Poly(oxybenzoate‐ co ‐oxynaphthoate) (POCO) film surfaces were modified with remote oxygen plasma, and the effects of the modification on the adhesion between the copper layer and POCO were investigated. The remote‐oxygen‐plasma treatment led to a noticeable decrease in the contact angle, which was mainly due…
The magnetism and magnetotransport properties of doped perovskite LaMn 1− x Zn x O 3 ( x = 0.05, 0.10, 0.15, 0.20, 0.30, 0.40) have been studied. All samples exhibit insulating behaviour under zero field and a 6 T field (except for x = 0.05, the weak insulating–metallic transition occurs near T C under zero field), bu…
Abstract Low density polyethylene (LDPE) was reacted with benzoyl peroxide (BPO) and 2,2,6,6‐tetramethyl‐l‐piperidinyloxy (TEMPO) to prepare a latent macroinitiator, PE–TEMPO. Little polymer was synthesized when maleic anhydride (MAH) was bulk polymerized in the presence of the PE–TEMPO. However, addition of styrene a…
Abstract For Abstract see ChemInform Abstract in Full Text.
Abstract While silicone rubber has a much lower shear viscosity than that of fluororubber, the viscosity of silicone rubber/fluororubber blends is closer to that of silicone rubber. All rubber compositions show pseudoplastic behavior. While the viscosity of a 50/50 silicone rubber/fluororubber blend increases on repla…
Polycondensation of phenyl 4-(octylamino)benzoate (1) in the presence of diphenyl terephthalate (2) as a difunctional initiator proceeded in a bidirectional propagation from 2. This polycondensation was applied to the synthesis of poly(ethylene glycol) (PEG)–aromatic polyamide–PEG triblock copolymer (4) as a new, well…
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We present a photoluminescence and photoluminescence excitation study of CdTe quantum dots, prepared via a novel organometallic approach. The global photoluminescence (excited at the energy above the absorption edge) showed a red shift of 75 meV with respect to the first absorption peak. This band edge emission was fo…
Abstract Plasma‐enhanced (PE) CVD from α‐methylstyrene is a dry method for synthesizing directly patternable sacrificial materials for generating pores or air dielectric layers. Films deposited at low power excitation (40 W) decompose between 65 °C and 75 °C, leave minimal residue following a 400 °C anneal for 2 h, an…
Abstract Lanthanum nickelate layers have been deposited onto 100 mm diameter silicon/silicon dioxide and (0001) sapphire substrates by liquid‐delivery metal–organic (MO) CVD using the precursors La(thd) 3 and Ni(thd) 2 (thd = 2,2,6,6‐tetramethyl‐3,5‐heptanedionato) dissolved in tetrahydrofuran and heptane. The LaNiO 3…
We studied the magnetic properties and the magnetic circular dichroism (MCD) of (Ga,Mn)As films with two kinds of the hole-carrier density though keeping a constant value in the Mn concentration grown by the molecular beam epitaxy method. To control the carrier density in (Ga,Mn)As, we utilized Sn atoms, which compens…
The crystal structure and magnetic properties of a new series of ordered double-perovskite oxides Sr 2 Fe x Mo 2− x O 6 (0.8 ≤ x ≤ 1.5) have been studied. The crystal structure changes from a tetragonal I 4/mmm lattice to a cubic Fm m lattice around x = 1.2. The degree of ordering in Sr 2 Fe x Mo 2− x O 6 exhibits a m…
Abstract Transparent and homogeneous polymer hybrids were obtained from a series of random styrene/ N,N ‐dimethylacrylamide copolymers (PS n PA m ) and octa(3‐hydroxypropyldimethylsiloxy)octasilsesquioxane (Cube‐OH) by means of the sol–gel reaction of phenyltrimethoxysilane (PTMOS). The resulting ternary polymer hybri…
Structure, magnetism, and transport have been investigated for ${L}_{0.5}{\mathrm{Sr}}_{0.5}{\mathrm{Co}}_{1\ensuremath{-}x}{\mathrm{Ru}}_{x}{\mathrm{O}}_{3}$ $(L=\mathrm{La},$ Pr, Nd, Sm, and Eu, $x=0,$ 0.1, and 0.2), in which Ru is doped at the Co site in perovskites ${L}_{0.5}{\mathrm{Sr}}_{0.5}{\mathrm{CoO}}_{3}.$…
The pressure dependences of the lattice parameters, electronic structure, and bonding properties of the layered ternary compound Ti 3 SiC 2 were investigated by performing ab initio plane-wave pseudopotential total energy calculations. The material exhibited elastic anisotropy. The lattice constants and axial ratio we…
Uniform thin films of gold nanoparticles have been fabricated on gold substrates using a layer‐by‐layer self‐assembly approach (see Figure). The optical properties of these nanoparticle films were characterized using variable‐angle spectroscopic ellipsometry, and the data modeled using a Lorentz oscillator dispersion…
Abstract The development of the poly(3‐hydroxybutyrate) (PHB) morphology in the presence of already existent poly(vinylidene fluoride) (PVDF) spherulites was studied by two‐stage solidification with two separate crystallization temperatures. PVDF formed irregular dendrites at lower temperatures and regular, banded sph…
With the use of ab initio based molecular dynamics simulations we study the structural, dynamical and electronic properties of glassy $g\ensuremath{-}{\mathrm{GeS}}_{2}$ at room temperature. From the radial distribution function we find nearest neighbor distances almost identical to the experimental values and the sta…
High energy x-ray diffraction measurements on $\mathrm{Pb}({\mathrm{Zn}}_{1/3}{\mathrm{Nb}}_{2/3}){\mathrm{O}}_{3}$ (PZN) single crystals show that the system does not have a rhombohedral symmetry at room temperature as previously believed. The phase (X) in the bulk of the crystal gives Bragg peaks similar to that of…